Fuel cell unit and fuel cell
AssigneeHonda Motor Co., Ltd.
InventorsMasahiro FUKUTA, Yoshihiro NAKANISHI, Kentaro ISHIDA
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Abstract
A fuel cell unit of a fuel cell contains a first membrane electrode assembly having a frame portion on an outer circumference thereof, a first separator, a second membrane electrode assembly having a frame portion on an outer circumference thereof, a second separator, and a third separator. A plurality of resin pins are formed integrally on the frame portion of the first membrane electrode assembly. The resin pins are integrally inserted into holes in the first separator, holes in the second membrane electrode assembly, holes in the second separator, and holes in the third separator.
Claims12
A fuel cell unit formed by stacking a rectangular membrane electrode assembly and a rectangular separator together, the membrane electrode assembly comprising a pair of electrodes and an electrolyte membrane interposed between the electrodes, a picture-frame-like resin frame being formed on an outer circumference of the membrane electrode assembly,
- wherein at least one of the membrane electrode assembly has a plurality of fastening members on opposite long sides thereof,
- another component including the separator has holes into which the fastening members are inserted, and
- the fastening members are fitted into the inner circumferential surfaces of the holes with no gap therebetween, and the at least one membrane electrode assembly and the other component are integrated together.
A fuel cell formed by stacking a plurality of fuel cell units, the fuel cell units each formed by stacking a rectangular membrane electrode assembly and a rectangular separator together, the membrane electrode assembly comprising a pair of electrodes and an electrolyte membrane interposed between the electrodes, a picture-frame-like resin frame being formed on an outer circumference of the membrane electrode assembly,
- wherein, in each of the fuel cell units, the picture-frame-like resin frame has a plurality of fastening members on opposite long sides thereof, and the fuel cell unit is retained integrally by the fastening members, and
- the fastening members of the fuel cell units adjacent to each other are not overlapped with each other in the stacking direction of the fuel cell units.
A fuel cell formed by stacking a plurality of fuel cell units, the fuel cell units each formed by stacking a rectangular membrane electrode assembly and a rectangular separator together, the membrane electrode assembly comprising a pair of electrodes and an electrolyte membrane interposed between the electrodes, a picture-frame-like resin frame being formed on an outer circumference of the membrane electrode assembly,
- the fuel cell units are stacked such that one of the adjacent fuel cell units is rotated 180° about an axis perpendicular to an electrode surface with respect to the other of the adjacent fuel cell units,
- each of the fuel cell units has a plurality of fastening members on opposite long sides thereof, the fuel cell unit is retained integrally, and
- when the fuel cell unit is rotated 180° about the axis, the post-rotation positions of the fastening members on one of the long sides are located between the pre-rotation positions of the fastening members on the other long side.
Dependencies are inferred from the claim text.